Application of Isotope Dilution Mass Spectrometry for Reference Measurements of Cadmium. Copper, Mercury, Lead, Zinc and Methyl Mercury in Marine Sediment Sample

被引：0

作者：

Vasileva, E. ^{[1
]}

Wysocka, I. A. ^{[1
]}

机构：

[1] IAEA, Marine Environm Labs, MC-98000 Monaco, Monaco

来源：

PROCEEDINGS OF THE 16TH INTERNATIONAL CONFERENCE ON HEAVY METALS IN THE ENVIRONMENT | 2013年 / 1卷

关键词：

ID ICP-MS; cadmium; copper; lead; zinc; mercury; methyl mercury; sediment sample; uncertainty; traceability; validation;

D O I：

10.1051/e3sconf/20130105008

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Marine sediment was selected as a test sample for the laboratory inter-comparison studies organized by the Environment Laboratoryes of the International Atomic Energy. The analytical procedure to establish the reference values for the Cd, Cu, Hg, Methyl Hg, Pb and Zn amount contents was based on Isotope Dilution Inductively Coupled Plasma-Mass Spectrometry (ID ICP-MS applied as a primary method of measurement.. The Hg and Methyl Hg determination will be detailed more specifically because of the problems encountered with this element, including sample homogeneity issues, memory effects and possible matrix effects during the ICP-MS measurement stage. Reference values, traceable to the SI, with total uncertainties of less than 2% relative expanded uncertainty (k=2) were obtained for Cd, Cu, Zn and Pb and around 5% for Hg and CH3Hg.

引用

页数：2